Mckinney



C. B. McKENNEY.

Flood Gatq. No. 68,767. Patented Sept. 10,1867,

N. PETERS, FHOTO-LRHOGRAPHER, WAsHmGTON. D C,-

g ms tetra gau t @ffi CHARLES B. CKINNEY, 0 F 'H ous'ro N, 01110.

Letters Patent No. 68,767, dated September 10, 1867.

IMPROVEMENT IN FLOOD-GATE.

TO ALL WHOM IT MAY CONCERN: p v

Be it known that I, C. B. McKINNEY, of Houston, Shelby county, State of Ohio, have invented a. new and useful improved Flood-Gate and I do hereby declare the following to be a full, cleaiyand exact description of the nature, construction, and operation of the same, sufiicient to enable one skilled in the art to which it appertains to construct and use the same, reference being had to the accompanying drawings, which are made part of this specification, and in which the same letters indicate similar parts.

Figurel is a perspective view. Figure 2 is a vertical transverse section. a I r Attached to sills buried in the gronnd'parallel to the direction of the water-course are posts, which-form guides for the gate, which is raised by the pressure of the stream against thel ower bar, which presents an.

oblique face to the current. V

In the drawings, A A are two long'sills, which are buried in the. bank of the ditch 'or stream. B B arc posts framed into the sills. The edges of the post which face each other have grooves, in which slide the.

upright stiles c of the gate C, as the current presses against the oblique surface of the lower rail or float (2, and raises the gate. This rail or float is made by uniting a flat platform, d, with an inclined side piece, 01',

the bottom of the side piece being bevelled off, so as to form with the platforms. float, the cross-seetionof which, as shown clearly in fig. 2, is in the shape of a slcd-grunner. The float, thus, made, is bolted or fixed firmly to the bottom of the gate,vso asto present the inclined surface against the current. i

The advantages of this form of construction are, among uther's, thut the flat platform :1 draws less water than if the float were cylindrical or triangular in shape; secondly, that there is no need of butone face being inclined, as the current impinges against only one, and, by avoiding the other, the expense of it is saved;

thirdly, that by bolting or otherwise fastening the float to the gate, the whole apparatus is strengthened; and fourthlyfthat such a construction is considerably less expensive than the more complicated, and at the same time more easily injured, rotating floats which are sometimes used in such gates. D D are traces to sustain the posts, and a number may be set along side of each other if the stream berof considerable breadth.

The red lines in fig. 2 indicate the more elevated position of the gate under the pressure of the current. If drift-wood come in contact with the incliued face of thelower slat or float d, itwill raise the latter and pass harmlessly underneath.. I p p y Having described my invention, whatl claim therein as new, and dcsire to secure-by Letters Patent, is:-

I claim a flood-gate, having the float d, composed of the fiat platform d and the inclined side piece d", firmly fixed to each other, and the float thus constructed being firmly bolted to the bottom of the gate, substantially as and for the purpose specified. m l

l CHARLES B. McKINNEY.

Witnesses WILLIAM BLAND, JACOB HUEGEL. 

